a new obligation relating to refunds is imposed on the Commerce Commission (see new regulation 3(3)). The new obligation arises where the costs to the Commission of determining an application under section 58 or 65A of the Act or a notice under section 66(1) or 67(1) of the Act are less than the prescribed fee paid for that matter. In these circumstances, the Commission must, within 60 working days after determining the application or notice (or, in the case of an application under section 58 or 65A of the Act, the date of its earlier withdrawal), refund the difference between the Commission’s costs and the fee paid. The new obligation applies for fees that are paid on or after new regulation 3(3) commences: